Carex lenticularis var. lipocarpa

(Holm) L. A. Standley

Syst. Bot. Monogr. 7: 67. 1985.

IllustratedEndemic
Basionym: Carex vulgaris var. lipocarpa T. Holm Amer. J. Sci. 167: 308. 1904
Synonyms: Carex hindsii var. brevigluma Kükenthal Carex kelloggii W. Boott Carex lenticularis var. paullifructus Kükenthal
Treatment appears in FNA Volume 23. Treatment on page 393. Mentioned on page 389, 391, 392.

Culms 15–90 cm. Leaf-blades 2–4 mm wide. Inflorescences: peduncle of proximal spike 1 cm or longer; proximal bract redbrown at base, 1.5–3 mm wide. Spikes: proximal 3–7 spikes pistillate, 1.5–2.5 cm × 2.5–4 mm; terminal spike staminate. Pistillate scales redbrown or black. Perigynia 5–7-veined on each face, ovoid or ellipsoid, 2–3.5 × 1–1.8 mm; stipe 0.2–0.5 mm; beak redbrown, 0.1–0.5 mm. 2n = 92.


Phenology: Fruiting Aug.
Habitat: Lakeshores, wet meadows
Elevation: 0–3000 m

Distribution

V23 699-distribution-map.jpg

Alta., B.C., Alaska, Ariz., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Carex lenticularis var. lipocarpa is the most abundant member of the species in western North America. It is distinguished from the other western taxa by the green, short-stipitate, ellipsoid perigynia and the elongate inflorescence; it is distinguished from the eastern var. lenticularis by the black scales and the red-brown beak orifice.

Despite the morphologic similarity of Carex lenticularis var. lenticularis and C. lenticularis var. lipocarpa and the apparent intergradation where the two ranges come into contact, there appears to have been some divergence in chromosome numbers.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number.

biconvex +
not constricted +
, +  and papillose +
Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
(Holm) L. A. Standley +
shortened +
not +  and fibrous +
distended +, attenuate +  and cuneate +
Carex vulgaris var. lipocarpa +
bidentate +  and emarginate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
papillose +
m--shaped +  and v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
15 cm150 mm <br />0.15 m <br /> (90 cm900 mm <br />0.9 m <br />) +
prophyllate +, subsessile +, pedunculate +  and staminate +
Alta. +, B.C. +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
0–3000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Lakeshores, wet meadows +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
1 cm10 mm <br />0.01 m <br /> (?) +
with (1-)3-6(-30) bristles and/or scales +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Fruiting Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
short-sheathing +, sheathless +  and leaflike +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Syst. Bot. Monogr. +
adventitious +
black +  and redbrown +
basal +  and proximal +
2-keeled +
ladder-fibrillose +  and veined +
cylindric +
Illustrated +  and Endemic +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +  and 0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex hindsii var. brevigluma +, Carex kelloggii +  and Carex lenticularis var. paullifructus +
Carex lenticularis var. lipocarpa +
Carex lenticularis +
variety +
plant +  and cespitose +